PlainWater
States → Michigan

SENEY TOWNSHIP

PWS ID: MI0005991 · SENEY, Michigan 49883-0116

SENEY TOWNSHIP serves 100 people in SENEY, Michigan using Groundwater water sources. It has 272 recorded EPA violations, including 7 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: SENEY TOWNSHIP

SENEY TOWNSHIP is a local-owned community water system that delivers drinking water to 100 residents in SENEY, Michigan (Schoolcraft County) through 84 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 272 total violations for this system , of which 7 (3%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 260 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 40 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Michigan, EPA tracks 10,959 public water systems serving 9,098,093 people, with 255,201 cumulative violations and 31,467 health-based violations on record. About 86% of systems in the state carry at least one violation, and state-wide the average per system is 23.3 violations. SENEY TOWNSHIP's 272 violations sit above the Michigan average. Statewide, 87 of 318 UCMR5-tested systems have reported PFAS detections (27.4%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
100
Total Violations
272
Health-Based Violations
7
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
84
County
Schoolcraft
School/Daycare
No
MCL Violations
7
Monitoring Violations
260
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 40 2008
Coliform (TCR) MCL 7 1996
Consumer Confidence Rule Other 5 2023
Cadmium MR 4 2005
CYANIDE MR 4 2005
Mercury MR 4 2005
Nickel MR 4 2005
Antimony, Total MR 4 2005
Beryllium, Total MR 4 2005
Thallium, Total MR 4 2005
Endrin MR 4 2005
BHC-GAMMA MR 4 2005
Simazine MR 4 2005
Picloram MR 4 2005
Dinoseb MR 4 2005
Hexachlorocyclopentadiene MR 4 2005
Aldicarb MR 4 2005
Atrazine MR 4 2005
Heptachlor MR 4 2005
Heptachlor epoxide MR 4 2005
2,4-D MR 4 2005
2,4,5-TP MR 4 2005
HEXACHLOROBENZENE MR 4 2005
1,2,4-Trichlorobenzene MR 4 2005
Selenium MR 4 2005
Xylenes, Total MR 4 2005
Chlordane MR 4 2005
DICHLOROMETHANE MR 4 2005
1,2-Dichloroethane MR 4 2005
1,1,1-Trichloroethane MR 4 2005

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for SENEY TOWNSHIP.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID MI0005991 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Michigan Drinking Water Authority

Michigan EGLE — Drinking Water and Environmental Health Division is the primacy agency that licenses and inspects SENEY TOWNSHIP under EPA-delegated authority.

Open MI regulator portal

Source: Michigan EGLE — Drinking Water and Environmental Health Division

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2023 Consumer Confidence Rule Other 5 SDWIS / MI0005991 / 7000
2008 Coliform (TCR) MR 40 SDWIS / MI0005991 / 3100
2005 Cadmium MR 4 SDWIS / MI0005991 / 1015
2005 CYANIDE MR 4 SDWIS / MI0005991 / 1024
2005 Mercury MR 4 SDWIS / MI0005991 / 1035
2005 Nickel MR 4 SDWIS / MI0005991 / 1036
2005 Antimony, Total MR 4 SDWIS / MI0005991 / 1074
2005 Beryllium, Total MR 4 SDWIS / MI0005991 / 1075
2005 Thallium, Total MR 4 SDWIS / MI0005991 / 1085
2005 Endrin MR 4 SDWIS / MI0005991 / 2005
2005 BHC-GAMMA MR 4 SDWIS / MI0005991 / 2010
2005 Simazine MR 4 SDWIS / MI0005991 / 2037
2005 Picloram MR 4 SDWIS / MI0005991 / 2040
2005 Dinoseb MR 4 SDWIS / MI0005991 / 2041
2005 Hexachlorocyclopentadiene MR 4 SDWIS / MI0005991 / 2042

How SENEY TOWNSHIP Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric SENEY TOWNSHIP Michigan avg Federal benchmark
Total violations 272 23.3 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 7 2.9 Indicates a contaminant exceeded a federal MCL
PFAS detection None 27.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 100 830 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 10,959 regulated public water systems in Michigan.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is SENEY TOWNSHIP water safe to drink? ▼
SENEY TOWNSHIP (PWS ID: MI0005991) has 272 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 100 people using Groundwater sources.
How many people does SENEY TOWNSHIP serve? ▼
SENEY TOWNSHIP serves 100 people in SENEY, Michigan. It is a Local-owned system using Groundwater water sources with 84 service connections.
What type of violations does SENEY TOWNSHIP have? ▼
SENEY TOWNSHIP has 272 total violations: 7 health-based violations (MCL exceedances or treatment failures), 260 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in SENEY TOWNSHIP water? ▼
No PFAS testing data is available for SENEY TOWNSHIP under the EPA's UCMR5 monitoring program.
What water source does SENEY TOWNSHIP use? ▼
SENEY TOWNSHIP uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

Explore PlainWater

Water in Michigan

All systems in state
All States

Water quality by state
Contaminants

PFAS & other pollutants
Guides

Understanding water quality

Related Data for Michigan

Environmental Data → Natural Hazards → Air Quality → Healthcare Access → Climate Data →
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →
Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial